The present invention provides compositions useful as a barrier layer in, for example, packaging products. The compositions generally comprise a blend of (i) a polyester resin, preferably an aromatic polyester resin such as polyethylene terephthalate (PET) and (ii) a polyamide material (e.g., MXD6)....http://www.google.es/patents/US20040068055?utm_source=gb-gplus-sharePatente US20040068055 - Multilayered package with barrier properties
Número de solicitud: 10/416,127 Número de publicación: US 2004/0068055 A1 Fecha de presentación: 17 Nov 2003 Patente emitida: US7244484 ( Fecha de emisión 17 Jul 2007)
